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首页> 外文会议>Building walls subject to water intrusion and accumulation: lessons from the past and recommendations for the future >Case Study Repair of Shadow Box Spandrel Condensation
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Case Study Repair of Shadow Box Spandrel Condensation

机译：暗箱暗箱冷凝水修复案例研究

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摘要

Most people naturally assume that water leaks are caused by exterior precipitation. However, when the reported water leaks are not coincident with rain or snow, other factors, such as interior condensation, need to be considered. Curtain wall construction is susceptible to condensation if interior ambient humidity can reach cold metal or glass surfaces. Shadow box spandrels-spandrel panels built with vision glass and recessed back panels to give a sense of depth to the spandrel glass-introduce multiple planes where such condensation could occur. Condensation on internal shadow box surfaces, such as the metal back panels, can lead to water leaks inside the building. Condensation on the interior surface of the shadow box glass may also be visible and unattractive from outside the building. This paper details one case of internal condensation in curtain wall shadow box spandrels. The paper describes the initial leak investigation, the repair options evaluated, laboratory testing to assess the repair options, and how the repairs were implemented. Lessons learned from this case study are offered for future curtain wall designs of similar construction.
机译：大多数人自然地认为漏水是由外部降水引起的。但是，当报告的漏水与雨雪不符时，则需要考虑其他因素，例如内部冷凝。如果内部环境湿度可以到达冷金属或玻璃表面，则幕墙结构易于凝结。带有视觉玻璃的暗箱式散弹片-散弹片面板和凹陷的后面板使散弹片玻璃具有深度感，并引入了可能发生这种凝结的多个平面。内部影箱表面（例如金属背板）上的冷凝水可能导致建筑物内部漏水。阴影框玻璃内表面上的冷凝水也可能从建筑物外部看到并且没有吸引力。本文详细介绍了一种在幕墙阴影箱span中内部凝结的情况。本文介绍了初始泄漏调查，评估的维修方案，评估维修方案的实验室测试以及维修的实施方式。从该案例研究中学到的经验教训可用于以后类似结构的幕墙设计。

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